The source you posted speaks of marital status, The author tries to deduces divorce rate from the marital status. Whereas the source I posted specifies the number of divorces taken and the data is collected from family courts.
As stated previously, there aren't many cases of triple talaq either as being depicted.
Contrary to popular perception that most Muslim women get unilateral divorces through phone, email and via text messages, the BMMA case study shows only one divorce out of the 117 was delivered in the absence of wife. As per the BMMA’s own findings, only 0.2% got divorced over the phone, 0.6% received it through email and out of 525 divorces, only one was delivered via SMS, that is only 0.19%. Thus the problem is not as serious as it is made out to be by the media and the government. Moreover, as many as 220 divorces occurred in family homes, 110 in court and 46 through
Darul Qaza. Thus as many as 71.6% of divorces happened publicly, according to the BMMA’s study, in the presence of family members, judges, lawyers, panchayats, NGOs and qazis. One is inclined to believe that in most cases there must have been some effort at reconciliation prior to actual divorce pronouncement and divorce in most cases was just the final act of amicably dissolving the marriage.
Source:
https://thewire.in/77923/muslim-personal-law-reforms-bmma-studies/